Carbureter.



No. 7I2,l50. I Patented Oct. 28, I902.

E n. PARBOTT.

OARBUBETEB.

(Application flled -0ct. 24, 1901.

(No Model.)

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. No. 7I2,l50. Patented Oct. 28, I902. E. D. PARROTT.

'CABBUR-ETER.

(Application filed Oct. 24, 1901.) (Ilo Model.) "2 Sheath-Shin 2,

I W -um 1" Hu I v l W TNESSES:

I IN-VENTOH M '1 zzyakzwmzz UNITED STATES PATENT OFFICE.

ELIJAH D. PARROTT, OF PORTLAND, OREGON, ASSIGNOR TO JAMES E. HUNT, OF PORTLAND, OREGON.

'CARBURETER.

SPECIFICATION forming part of Letters Patent No. 712,150, dated October 28, 1902.

Application filed October 24, 1901. Serial No. 79,819. (No model.)

T0 on whom it may concern:

Be it known that LELIJAH I). PARROTT, residingatPortland,iu thecountyofMultnomah and State of Oregon, haveinvented a new and Improved Carbureter, of which the following is a specification. v

This invention is in the nature of an improved apparatus for manufacturing illuminating and fuel gas from gasolene; and it seeks toprovide a simple and inexpensive construction of parts adapted to generate the gaseous vapor by passing air through the gasolene under pressure and in such manner as to create a gas of uniform consistency.

My invention also includes in its make-up means for preventing residue from accumulating on top of the inner part of the generator and codperating mechanism for regulating the manufacture of the gas according to the consumption.

In its subordinate features my invention consists in certain novel combination of parts and details of construction, all of which will hereinafter be fully explained,and specifically pointed out in the appended claims, ref erence being had to the accompanying drawings, in which- Figure 1 is a vertical section of my improved gas-generating apparatus, parts being in side elevation to the more clearly illustrate my invention. Fig. 2is a vertical transverse section of a portion thereof on the. line 2 2 of Fig. 1, and Fig. 3is a transverse section taken" practically on the line 33 of Fig. 1 looking in the direction of the arrow. I Y

In its practical construction my invention comprehends generally a gasolene holder or supply tank, a mixing compartment into which the air and gasolene feed-pipes discharge, .a cut-off mechanism operatively held within the mixing-compartment and governed by the gasolene-supply within said compartment for automatically controlling the gasoleue-feed, a storagektank or gasometer for the manufactured gas, and a pumping mechanism for forcing the properly-mixed and purified gas into the gasometer, automatically governed in its storing or pumping action by the shifting of the gasometer as the supply therein is exhausted below a predetermined point.

Referring now to the accompanying drawings, in which like characters indicate like parts in all the figures, 1 designates the generating or mixing chamber of suitable shape, with a central discharge-opening 1 in the top, that empties into a tubular extension 1", into thetop of which extends the offtake-pipe 2, presently again referred to.

3 designates the 'gasolene holder or tank, which may be disposed at any suitable point; but for economy of space I mount the same on top of the mixing-chamber 1, and said holder has filling and vent openings 3 3 and an outletpipe 4, that discharges into the chamber 1, as clearly shown in Fig. 1, by reference to which it will be noticed said pipe thas a cut-off valve 4 on the part within the chamber 1 and has a pendent extension 4", that extends over the bottom of chamber 1 to discharge the gasolene over the bottom centrally of the chamber, whereby a new charge can thoroughly mix with the residuum of a former charge and the maximum strength of the gasolene secured with a minimum waste. To provide for cutting off the gasolene-supply to the chamber 1, the pipe 4 on the outside of chamber 1 has a valve 4 as shown.

5 designates a float in the nature of a hollow ring .adapted to rise and fall Within the chamber 1 as the gasole ne in said chamber rises or falls, and to this floatis connected by straps 6 6 a perforated disk 6 of less diameter than the float-ring, whereby an an= nular space 7 is provided between the ring and disk, the reason for which will presently appear.

The perforated disk 6 has a central upwardlyeextending cylinder 6*, the upper end of which is loosely guided on the extension 1 of the chamber 1, and said cylinder 6 is open at the bottom for the passage of the discharge end 8 of the air feed-pipe 8, which extends into the chamber 1, and said end 8 discharges at the upperv closed end of cylinder 6, the several parts of the air-supply being so arranged that the air as it passes out of end 8* will turn down (see arrow) back into cylinder 6*, out at the lower end thereof, through the gasolene body, the level of which is indicated by the broken line no, and up through the perforated disk 6 into thecollecting-space above the gasolene, and in its saturated or intoo termixed condition escape into the extension 1 and into the offtake-pipe 2, and to insure a proper flow of the air up through the apertures in disk 6 said disk has an annular pendent flange 6*, as shown.

On the outer side the cylinder 6 has an eye or bracket piece (5, in which plays one end of a lever 9, the other end of which joins with the valve 4t, said lever and cylinder connection being so arranged relatively that the rise and fall of the float 5 will shift valve 4:. Th us when the float descends a short distance on account of consumption of the prior gasolene charge the lever 9 will be moved to slightly open the valve 4 to admit enough gasolene through pipe 4 to occupy the displacement of that quantity of gasolene just previously formed into gas, and by reason of the gasolene-supply being at the bottom the new charge will be perfectly intermixed with the gasolene already in the tank, which in the evaporating process insures a uniform quality of gas.

As a small amount of gasolene is admitted from the storage-tank into the mixing or generating chamber 1 the float 5 rises accordingly, the valve 4 properly controlled, and consequently the gasolene is kept at a uniform height in the generator-tank G.

The offtake-pipe 2 connects with a T-joint m, (see Fig. 3,) and said pipe has a valve 7., automatically shifted in the manner presently described, and to the joint m is also connected a supplemental or fresh-air pipe 2, having a hand-adj usted valve Z and an automatically-shifted valve 70, said supplemental fresh-air pipe being provided for adding a fresh-air supply according to the density of gas desired, which can be eifected by the operator manipulating the valve Z and setting it to an open position. The T-joint has a section m, that discharges into the casingK of the pumping mechanism, which I shall now describe and which constitutes a preferred form of pumping means to be used with the invention herein set forth and forms the subject-matter of a separate application pending herewith. Said means consists of a stationary casing K, held at any suitable point relatively to the-generator or mixingchamber and mounted on timbers B B on a fixedly-held platform A, on which at one end is a vertical standard Ct, in which is journaled a shaft g, which also has a bearing in the gland or stuffing-box w on one side of the casing K, as clearly shown in Fig. 1.

The shaft 9 is rotated by any suitable power-for example, by a Windlass 10, having its rope 10 passed over a pulley 10 and weighted, as at 10, and having a ratchet-.

and-pawl connection L with the shaft g. On that end of shaft g within the casing is fixedly held to rotate with the shaft the vaporpump J, which consists of a cylindrical body having four (more or less) cells or compartments of like construction and indicated by 1', s, 15, and u. The body or pump J in prac- J, and at their periphery and at one edge each space or cell has an opening that communicates with the interior of the casing K,

said openings being indicated by a, a, a and of, respectively. Assuming the parts to be in the position shown in Fig. 2 and the member J turning in the direction indicated by the arrow, cell or space 8 is at a point where water is discharged at opening 19 which causes the vapor to be received or drawn in at month a to occupy the displacement of the water being discharged, the water from cells passing into the central space Q and finding its level again ready for a repetition of the aforesaid action in cell or space t and cells it and o, successively, the cell If during the action in cell 8 being entirely under the water at both ends, while cell to will still be discharging vapor at its mouth 11 and receiving water to occupy the displacement through said mouth a and obtaining the supply discharging by cell i from said cell i. The line a," in Fig. 2 indicates where the water cannot find its level through one of the cells, as there is at no time a cell with both ends under water at the same time the water is at line 00. This makes a center flow or circuit necessary, the flow being in direction of arrows. The ends of the central space Q have perforations q q to admit of the aforesaid water circulation, the water passing through the lowermost holes q and from thence into the vapor or cell E at one end and from same into a collecting space or cap f and out of said cap through the central aperture 0 back into casing K, the same circuit or flow being maintained at the other end of central chamberQ by passinginto another cap-platef, having a central apertureO through which rotary shaft g passes. As the water-line as. never reaches the top of chamber Q, or, in other words, does not entirely immerse said chamber Q, but as the water immerses the openings 0 O at all times, no vapor can pass through the water circuit or outlets. The vapor drawn into the casing K is constantly expelled through the upper holes q into the vapor-chamberE, from whence it passes into the pipe at and from it into pipe at, that extends outside and discharges into the gasometer or collector E the flanges a (see Fig. 2) on the division members a that form thecells *r s t 'tt, acting as pusher or piston members to force the vapor to the discharge-openings and prevent any portion of the vapor from escaping from one cell into the other, said flanges a also serving to prevent gurgling and other unpleasant noises. The quantity or supply of gas being made is automatically controlled by the reciprocal or up-and-down'movement of the receiver E according to the amount of gas consumed, which is distributed through the gaspipe (see Fig. 1) that feeds the light-burners or other consumers. This automatic controlling of the manufacture of gas is accomplished through the medium of valve mechanisms operating in harmony with the gasometer or receiver E Thus as the receiver E falls by the consumption of the gas therein and reaches the bottom or a predetermined drop the same operates a lever 20, fulcrumed at 20 on a pendent arm 21. 22 designates a pendent lever-rod pivotally hung from lever 20 and slidably held in a guide-loop 2 on the outer end of another lever 23, fulcrumed on the gas-outlet pipe from the pump-casing J, as clearly shown in Figs. 1 and 3, and to provide for a predetermined action or movement of the lever Thelever 22 is provided with adjustable stops 22 22 for engaging the said lever 23. (See Fig. 3.) The lever 23 is integrally formed with or connected to an arm to, that projects upward nearly at right angles to the lever 23 1 and carries at its upper end a governor in the nature of an adjustable weight S, the purpose of which is to cause the arm with lever 23 to automatically shift by gravity in the opposite directions as the arm to is moved beyond a vertical line in either direction by action of the lever 22 (in its up or down movement) on the lever 23. The reciprocal movement of arm 20 is utilized for operating a slotted shifting bar 24, having abutments 24 24 and carrying pivoted fingers 25 25 one of which, 25, connects with thevalve K and the other, 25, with the valve 2' in the mixing or. offtake pipe R, before referred to.

By arranging the several valve-governing devices as described and shown the,lever 22 in descending will, through its upper adjustable lug, engage the lever 23, depress it, and cause the arm to to swing over in the direction indicated by the arrow in Fig. 3 until it (the arm 20) passes the vertical line, when the weight S will cause said arm to to swing forward with some force until it engages the abutment 24 Such movement causes the bar 24 to shift to the left, Fig. 3, and in doing so its members 25 25 turn the valves K and t and admit vapor from generator to the pump devices and in case the supplemental air-valve L is open a second supply of fresh air to intermix with the vapor that passes through the ofl'take-pipe R, such arrangement of parts being maintained until the gasometer or receiver E is again filled and caused to rise to a predetermined height, when the lift of member 22 will swing lever 23 and arm w, with governor-weight, in the opposite direction to cause the arm 10 to engage abut ment 24 and move the shifting bar 24 in a reverse direction to close off the valves 1' and 7c.

Thus in my construction of apparatus the feed of the gaseous vapor to the pump is automatically governed by the consumption of tion, stop-pins c c are provided on the stationary or supporting frame, as best shown in Fig. 3.

From the foregoing, taken in connection with the drawings, it is thought the complete construction, operation, and the advantages of my invention will be readily understood by those skilled in the art to which it appertains. While the detailed arrangement of parts shown serves to produce the results described and explained, I desire it understood that I do not limit myself to such exact details, as they may be varied or modified without departing from my invention or the scope of the appended claims.

Having thus described my invention, what I claim, and desire to secure by Letters Patcut, is--- 1. A gasgenerating apparatus, comprising a generating-chamber, a storing vessel having an oiftake, a pump, an offtake from the generator, having a valve discharging into the pump, said pump having a discharge into the storing vessel, and means controlled by predetermined quantity of gas within the storing vessel for automatically shifting the valve in the offtake that connects the generator to the pump, for the purposes described.

2. In a carbureter as described, a generator, comprising a gasolene-holder, a mixingchamber, a feed-pipe joining the said chamber and the holder, extended within the chamber, and having a cut-off valve at a point inside the chamber, a float within said chamber having a tubular stem, connections joining the stem and-the feed-pipe'cut-off valve, and an air-pipe extended into the chamber to discharge at a point above the fluid therein, all being arranged substantially as shown and for the purposes described.

3. In an apparatus as described, a generating means, comprising a mixing-chamber having an offtake, a gasolene-feed pipe extended into the chamber and provided with a cut-off valve, an air feed-pipe discharging into the chamber, and a ring float, said float including a perforated disk of less width than the ring float, whereby an annular drippassage is provided, anda tubular extension open at the bottom into which the air-pipe discharges, said float being connected with the gasolene-cu't-ofl valve, for the purposes described.

4. In an apparatus as described, a mixing or generating chamber, having a gas-offtake, a carbureted-air outlet, the gasolene-inlet having a cut-off valve, and a float for regulating the cut-0E valve, said float having a drip-space for the passage therethrough of residuum above it, for the purposes described.

5. The combination in an apparatus for the purposes described, With the generating-casing, having an offtake and a gasolene-intake, and air-feed, the intake having a cutoif valve; of a ring float within the chamber, said float including ring member and a perforated disk having a pendent annular flange, said disk being of less diameter than the ring member, whereby an intervening annular space is provided between the ring and the disk, for the purposes described.

6. A gas-generating means, comprising a generator or mixing-chamber, having an air [5 the valved offtake from the mixing-chamber, 20

for the purposes described.

ELIJAI-I D. PARROTT.

Witnesses:

A. T. LEWIS, J. E. I-IUNT. 

